NICET concrete level 1 questions with correct
answers
What is Bulk Density used for? (c29) - Answer Determining Mass/volume
relationship for conversions in purchase agreements
What is the dimensions of plate glass? (C29) - Answer 1/4" thick and at least 1"
larger than the diameter of the measure
What are the requirements for a thermometer? (C1064) - Answer has a range of at
least 30-120°F and readable to the nearest 1°F
When drying aggregate to constant mass, What should the temperature of the oven
be? (C29) - Answer 230°F (+/- 10°F)
When is an aggregate sample considered at constant mass? (C29) - Answer When
the 2 sample weights taken an hour apart is less than .1%
What is the formula for Bulk Density? (C29) - Answer (mass of agg. and measure
- mass of measure) /volume of measure
What is is maximum size to use the jigging procedure? (C29*) - Answer Greater
than 1.5", but no greater than 5"
What is the formula for void content? (C29) - Answer 100[(bulk specific gravity
X density of water) - Bulk Density of agg./ bulk specific gravity X density of water
bulk density be reported to the nearest.... (C29) - Answer 1 LB/ft^3
, What is the significance of ASTM C31? - Answer It provides the requirements
for making, curing, protecting and transporting concrete specimens
If specimens are made and standard cured what can the test results be used for?
(C31) - Answer -Acceptances for specific strength
-checking adequacy of mixture proportions
- Quality Control
if specimens are field cured what can the test results be used for? (C31) - Answer
-Determine if a structure can be put in service
-comparison with test results of standard cure specimens
-form removal time requirements
What are the specifications of a tamping rod? - Answer A round, smooth, straight,
steel rod. The length should be at least 4" greater than the depth of the mold, but no
greater than 24"
When using the a 4"x 8" cylinder, What are the rod specifications? - Answer
straight, steel, w/hemispherical tip 3/8" in diameter (+-1/16")
When using a 6" x 12" cylinder, What are the rod specifications? - Answer
straight, steel w/hemispherical tip 5/8" in diameter (+-1/16)
What is the minimum amount of cylinders per test?*** - Answer 3-4"x8"
2-6"x12"
answers
What is Bulk Density used for? (c29) - Answer Determining Mass/volume
relationship for conversions in purchase agreements
What is the dimensions of plate glass? (C29) - Answer 1/4" thick and at least 1"
larger than the diameter of the measure
What are the requirements for a thermometer? (C1064) - Answer has a range of at
least 30-120°F and readable to the nearest 1°F
When drying aggregate to constant mass, What should the temperature of the oven
be? (C29) - Answer 230°F (+/- 10°F)
When is an aggregate sample considered at constant mass? (C29) - Answer When
the 2 sample weights taken an hour apart is less than .1%
What is the formula for Bulk Density? (C29) - Answer (mass of agg. and measure
- mass of measure) /volume of measure
What is is maximum size to use the jigging procedure? (C29*) - Answer Greater
than 1.5", but no greater than 5"
What is the formula for void content? (C29) - Answer 100[(bulk specific gravity
X density of water) - Bulk Density of agg./ bulk specific gravity X density of water
bulk density be reported to the nearest.... (C29) - Answer 1 LB/ft^3
, What is the significance of ASTM C31? - Answer It provides the requirements
for making, curing, protecting and transporting concrete specimens
If specimens are made and standard cured what can the test results be used for?
(C31) - Answer -Acceptances for specific strength
-checking adequacy of mixture proportions
- Quality Control
if specimens are field cured what can the test results be used for? (C31) - Answer
-Determine if a structure can be put in service
-comparison with test results of standard cure specimens
-form removal time requirements
What are the specifications of a tamping rod? - Answer A round, smooth, straight,
steel rod. The length should be at least 4" greater than the depth of the mold, but no
greater than 24"
When using the a 4"x 8" cylinder, What are the rod specifications? - Answer
straight, steel, w/hemispherical tip 3/8" in diameter (+-1/16")
When using a 6" x 12" cylinder, What are the rod specifications? - Answer
straight, steel w/hemispherical tip 5/8" in diameter (+-1/16)
What is the minimum amount of cylinders per test?*** - Answer 3-4"x8"
2-6"x12"
